mama's boy

/M AA1 M AH0 Z B OY1/
noun
  1. 1

    A male who has a very close bond with his mother, and may consequently be perceived as soft or effeminate.

    โ€œHe's such a mama's boy that he can't even ask a girl out for a date without his mother's approval.โ€

Source: https://en.wiktionary.org/wiki/mama's%20boy